Yosef Karo

“ Paragraph 1 - We do not climb a tree, whether it is wet or dry, nor do we hang from it, nor do we use anything attached to the ground. This is a rabbinic decree lest one come to climb the tree and pick something from it. If someone climbed a tree on Shabbat by mistake, he is permitted to descend. If he did it on purpose, he is not allowed to descend. If he climbed the tree when it was still day on Friday, he is always allowed to descend after it gets dark. ”

“ Paragraph 4 - One should be careful to not throw seeds in a place where it rains, as they will eventually grow. If one throws seeds to chickens, he should only through the amount that they will eat in one or two days. If he is in a place where people walk a lot, it is permitted, because the seeds will not grow.
סעיף ד - יש להזהר מלהשליך זרעים במקום ירידת גשמים, שסופן להצמיח. ואם ישליך לתרנגולים, לא ישליך אלא כשעור שיאכלו בו ביום או ליומים, ואם הוא במקום דריסת רגלי אדם מתר, שאין סופו להצמיח. ”

“ Paragraph 3 - One is permitted to walk on grass, whether it is dry or wet, because he does not intend to uproot it. However, those who eat in the garden are forbidden to wash their hands over the garden, because they water the plants. ”